Experimental study on ultimate strength of bolted L shaped sleeve joints between CFS lipped channel sections

Natesan, Vijayakumar and Madhavan, Mahendrakumar (2020) Experimental study on ultimate strength of bolted L shaped sleeve joints between CFS lipped channel sections. Journal of Constructional Steel Research, 169. pp. 1-18. ISSN 0143-974X

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Abstract

This study aims to understand the behavior of bolted L shape sleeve joint connecting two Cold-Formed Steel (CFS) channel sections. A total of thirty-two specimens were experimentally tested under three-point bending. Three different series namely, (A) control specimen with two different span lengths, (B) sleeved specimen with the flange of sleeve connector capping the compression zone, and (C) sleeved specimen with the flange of sleeve connector capping the tension zone were tested. The parameters considered in this study include (i) the span length (Lt), (ii) sleeve length to section depth ratio (β), and (iii) thickness of sleeve connector (LS). The experimental results revealed that the ultimate moment resistance of specimens with a 2.5 mm thick sleeve connector was 19 to 73% higher than 2.0 mm thick sleeve specimens. The moment capacity of series C specimens was about 90–103% of that of the series B specimens. Based on the experimental results, design predictor equations were suggested to determine the moment resistance of sleeve specimens with respect to β. In addition, reliability studies were done for test series B to determine the safety and resistance factors for allowable strength design (ASD) method and load and resistance factor design (LRFD) method respectively. The equivalent and design uniformly distributed load (UDL) was determined based on the combined effect of shear and bending. © 2020 Elsevier Ltd

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IITH Creators:

IITH Creators	ORCiD
Madhavan, Mahendrakumar	UNSPECIFIED

Item Type:

Article

Additional Information:

The first author would like to acknowledge the fellowship from the Ministry of Human Resource Development (MHRD), India. The authors would like to gratefully acknowledge Pennar Engineered Building Systems Ltd., Hyderabad for their help in fabricating the test specimens required for experimental investigation.

Uncontrolled Keywords:

Channel purlin section; Flexural strength; Interaction study; L shape sleeve connector; Local buckling; Moment vs rotation; Reliability

Subjects:

Civil Engineering

Divisions:

Department of Civil Engineering

Depositing User:

. LibTrainee 2021

Date Deposited:

04 Nov 2022 09:06

Last Modified:

04 Nov 2022 09:06